from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Scraps of broken or waste glass gathered for remelting, especially with new material.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Scrap glass which is melted down for reuse.
- n. A small central plane in the back of a cut gem.
from the GNU version of the Collaborative International Dictionary of English
- n. Broken glass for remelting.
- n. A small central plane in the back of a cut gem. See collet, 3 (b).
from The Century Dictionary and Cyclopedia
- n. In glass manufacturing, refuse and broken glass, especially crown-glass, collected for remelting.
- n. Same as culet, 2.
Probably alteration of collet, neck of glass left on the blowing iron, from French, collar, diminutive of col, neck, from Old French, from Latin collum; see kwel-1 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
Variant of collet. (Wiktionary)